One More and One Less
- One More
One more is the next number when we count forward.
- One Less
One less is the number that comes just before. We find it when we count back.
We can find one more or one less. It works for numbers up to 20. It works past 20 too.
• To find one more, count forward one.
• To find one less, count back one.
Count the stars: 1, 2, 3, 4, 5, 6, 7.
Now there is one more star. Count forward one: 8.
Find 15 on the number path.
Count back one from 15. The number just before 15 is 14.
One less than 15 is 14.
We can say it the other way too: 15 is one more than 14.